| testis morphometry and stages of the seminiferous epithelium cycle in an epididymal sperm-storing neotropical vespertilionid, myotis levis (chiroptera). | yellowish myotis, myotis levis, is a seasonal, epididymal sperm-storing neotropical vespertilionid. in the dry season, males show simultaneous testis regression and sperm storage in cauda epididymis, enabling them to mate during this season. in this study, we investigated seasonal variations in body mass, diameter and height of seminiferous tubules and nuclei of leydig cells in a population of southeastern brazil. we also determined the frequencies of the stages of the seminiferous epithelium cy ... | 2015 | 25258091 |
| seasonal reproduction of yellowish myotis, myotis levis (chiroptera: vespertilionidae), from a neotropical highland. | with a nearly global distribution the vespertilionid bat myotis represents one of the most exceptional examples of adaptive radiation among mammals. we investigated the reproductive activity of the vespertilionid bat yellowish myotis, myotis levis, from a highland area in southeastern brazil. the data were obtained through histological analyses of the male and female genital systems from february 2010 to may 2011. the testes of the adult yellowish myotis showed seasonal morphological characteris ... | 2013 | 23907816 |
| [redescription and systematic reclassification of the trematode topsiturvitrema verticalia (trematoda: digenea) in a new family]. | the trematode species topsiturvitrema verticalia vélez and thatcher 1990 is redescribed based on two paratype samples and new material from the small intestine of the bat myotis levis (geoffroy), from bahia samborombón, buenos aires province, argentina. this species is characterized by the presence of a "rhynchus", that is, an anterior sucker-like attachment organ, by the position of the mouth on the ventral surface (surrounded by the ventral sucker), by two blind digestive structures, by the pr ... | 2006 | 18491645 |
| male reproductive morphofunctional evaluation of a neotropical sperm-storing vespertilionid bat (myotis levis) in an environmental context. | myotis levis (yellowish myotis) is a small neotropical insectivorous vespertilionid bat that provides valuable ecosystem services, such as control of disease vectors and agricultural pests. aiming to describe the fluctuations of the reproductive organs throughout the year, the gonads and epididymis from 124 adult bats were histologically evaluated. these animals were captured in santuário do caraça, minas gerais, brazil. after the initial screening, six bats per reproductive stage (in a represen ... | 2020 | 32686003 |